43042033 has 2 divisors, whose sum is σ = 43042034. Its totient is φ = 43042032.

The previous prime is 43042031. The next prime is 43042067. The reversal of 43042033 is 33024034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 5489649 = 6128^2 + 2343^2 .

It is a cyclic number.

It is not a de Polignac number, because 43042033 - 2¹ = 43042031 is a prime.

Together with 43042031, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43042033.

It is not a weakly prime, because it can be changed into another prime (43042031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521016 + 21521017.

It is an arithmetic number, because the mean of its divisors is an integer number (21521017).

Almost surely, 2^43042033 is an apocalyptic number.

It is an amenable number.

43042033 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042033 is an equidigital number, since it uses as much as digits as its factorization.

43042033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 43042033 is about 6560.6427276601. The cubic root of 43042033 is about 350.4539226080.

Adding to 43042033 its reverse (33024034), we get a palindrome (76066067).

The spelling of 43042033 in words is "forty-three million, forty-two thousand, thirty-three".